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第一章 气相色谱/质谱基础 - CAS · 分子离子: 碎片离子: 母离子、子离子 同位素峰:(见下页的表) 偶电子离子 奇电子离子 氮规则:假若一个化合物不含有氮原子或含有偶数个氮原子,则其分子离子的质量将是偶
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